Any person who, at least once in his life, once in his life has chalked up a deal with metal, knows that it is impossible to cope with it so easy without having a cutting tool at hand. Simple work with thin sheets of material can be done using a grinder, metal scissors or jigsaw.
Hydraulic shears can handle thick metal sheets and fittings.
How does a hydraulic cutter work?
The principle of their operation is in many ways similar to conventional metal shears or their electric versions. The difference is that the voltage on the maneuverable knife is supplied not from the gearbox, but from the hydraulic cylinder, which is also called the pump.
Note. The blade of the hydraulic shear moves slowly, which allows you to take control of the metal cutting process. In the event of a lack of cutting force, the operator will be able to understand this by the increasing rebound of the hydraulic drive.
This nuance in work has an advantage, since the tool is able to generate a large force of pressure on the metal. This feature makes it possible to easily cut reinforcement and metal sheets, extremely accurately in a short time.
The design of the tool provides for the principle of increasing force using a pump or hydraulic cylinder. The master applies a cylinder to the lever, which pumps a force from 10 to 15 kg, while the working rod, connected to a moving blade, produces up to 4 - 5 tons in manual models, and 50-60 tons in hydraulic ones.
It is a tool equipped with a hydraulic cylinder drive and is powered by a pumping station. This tool is capable of cutting metal products, as well as stitching and cutting. Therefore, it is mainly used in factories for the production of machines of any type.
There are two types of hydraulic shears - open edge and guillotine.
Open guillotine shears for metal cutting resemble ordinary office tools, which have 2 blades connected in the middle, and during cutting, under the influence of the pushing rods, they simultaneously rotate opposite each other, cutting the material.
Hydraulic guillotine shears have a simple design. One blade is fixed in a steel frame in a stationary state. The second blade moves in a straight line under the onslaught of a hydraulically driven pusher.
When the blades meet, the metal cutting process takes place.
Hydraulic hand shears are the most popular because they can be used to cut any material. Their design allows you to evenly distribute the applied force of impact on the metal, and are characterized by power and small size at the same time. Guillotine shears are suitable for cutting rods and wires. In production, scissors are often used.
Open-type tool for cutting reinforcement, rolled metal, pipes from metal profiles. They are larger and heavier than guillotine instruments. The applied cutting force is less, but due to the ability to open the blades, the ability to cut any material appears. Hydraulic shears NGO 100 can cut a profile with a section of about 100 mm.
Firefighter hydraulic cutter and rescue hydraulic cutter are used by the respective services.
The tool does not require special skills in handling and with it. It is simply connected to a hydraulic pump and the profile is captured.
Tool with guillotine-type knife placement. Such tools are mainly used for cutting wire, rope, cable. Used for cutting cables, ropes and wires.
The cut quality is high, especially for thick cables. During the cutting process, the wires are fused together under the pressure of the blades.
Note. These types differ in the design of the hydraulic drive and the blade closing scheme.
Used for cutting the cable.
In order to relieve the pressure and return the scissors to their initial state, you need to turn the handle half a turn in the circle of its own axis.
The MX 700 Nargesa tool is used for working with metal and is produced as a vertical console with a cutting guillotine unit, which is fixed on a metal machine. The cutting force is about 60 - 70 tons, and makes it possible to cut profiles from steel, ferrous metal and reinforcement.
On the worktable, you can work with workpieces 60 cm long and 35 cm high. The hydraulic voltage station is activated by an electric motor with a power of 5 kW.
The device of open hydraulic shears allows their use in construction and logging. The high-power hydraulic gripper, which is attached to a heavy-duty tractor, cuts concrete, trees and all kinds of metal with equal dexterity. The weight-to-effort ratio gives excellent results. Household hydraulic shears can last 3-4 years, given good handling. A professional tool can make 3,000 cuts, then the seals and hydraulic valves need to be changed.
When choosing a scissor for domestic use, you must take into account the purpose. The prices in stores for the instrument vary greatly. The cost of manual models ranges from 50 to 2000 rubles. The price of hydraulic shears reaches 20 thousand rubles.
When buying, take into account:
Experts recommend not to spend money on an expensive tool if you need to carry out a single work. For such purposes, hand-held metal scissors will do. Hydraulic shears are good for large volumes of work and for more serious material.
( 1 grade, average 5 of 5 )
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